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A platform for research: civil engineering, architecture and urbanism
Start-stop control system of electric hydraulic excavator
The invention discloses a start-stop control system of an electric hydraulic excavator. The system comprises an electric control cabinet, a high-voltage motor and a cab control system, wherein a high-voltage power supply is sent into the electric control cabinet through an external power supply station, and the electric control cabinet transmits the high-voltage power supply to the high-voltage motor. The electric control cabinet comprises a main circuit and a control circuit. In the main circuit, one end of a high-voltage isolation switch is connected with a high-voltage fuse I and a high-voltage fuse II, the high-voltage fuse I is sequentially connected with a main contactor, a bypass contactor and a current transformer in series, high-voltage electric energy is sent to a high-voltage motor, and the bypass contactor is connected with a starting reactor in parallel. The high-voltage fuse II is connected with a step-down circuit, the step-down circuit is divided into three paths of power supplies of DC24V, AC220V and AC380V, the AC380V power supply is connected with a detection circuit, and the detection circuit comprises a voltmeter, a voltage sensor, a voltage detector, a motor relay, an ampere meter and a temperature controller. The control system can effectively improve the operation safety and reliability of the high-voltage motor.
本发明公开了一种电动液压挖掘机起停控制系统，包括电控柜、高压电动机和驾驶室控制系统，通过外部供电站将高压电源送至电控柜内，由电控柜将高压电源输送给高压电动机。电控柜包括主电路和控制电路，在主电路内，高压隔离开关一端接高压熔断器I和高压熔断器II，高压熔断器I依次与主接触器、旁路接触器、电流互感器串联，将高压电能送到高压电动机，旁路接触器与起动电抗器并联。高压熔断器II与降压电路连接，由降压电路分出DC24V、AC220V、AC380V三路电源，其中AC380V电源连接检测电路，检测电路包括电压表、电压传感器、电压检测器、电机继电器、电流表和温度控制器。本控制系统可以有效提高高压电动机运行时的安全性和可靠性。
Start-stop control system of electric hydraulic excavator
The invention discloses a start-stop control system of an electric hydraulic excavator. The system comprises an electric control cabinet, a high-voltage motor and a cab control system, wherein a high-voltage power supply is sent into the electric control cabinet through an external power supply station, and the electric control cabinet transmits the high-voltage power supply to the high-voltage motor. The electric control cabinet comprises a main circuit and a control circuit. In the main circuit, one end of a high-voltage isolation switch is connected with a high-voltage fuse I and a high-voltage fuse II, the high-voltage fuse I is sequentially connected with a main contactor, a bypass contactor and a current transformer in series, high-voltage electric energy is sent to a high-voltage motor, and the bypass contactor is connected with a starting reactor in parallel. The high-voltage fuse II is connected with a step-down circuit, the step-down circuit is divided into three paths of power supplies of DC24V, AC220V and AC380V, the AC380V power supply is connected with a detection circuit, and the detection circuit comprises a voltmeter, a voltage sensor, a voltage detector, a motor relay, an ampere meter and a temperature controller. The control system can effectively improve the operation safety and reliability of the high-voltage motor.
本发明公开了一种电动液压挖掘机起停控制系统，包括电控柜、高压电动机和驾驶室控制系统，通过外部供电站将高压电源送至电控柜内，由电控柜将高压电源输送给高压电动机。电控柜包括主电路和控制电路，在主电路内，高压隔离开关一端接高压熔断器I和高压熔断器II，高压熔断器I依次与主接触器、旁路接触器、电流互感器串联，将高压电能送到高压电动机，旁路接触器与起动电抗器并联。高压熔断器II与降压电路连接，由降压电路分出DC24V、AC220V、AC380V三路电源，其中AC380V电源连接检测电路，检测电路包括电压表、电压传感器、电压检测器、电机继电器、电流表和温度控制器。本控制系统可以有效提高高压电动机运行时的安全性和可靠性。
Start-stop control system of electric hydraulic excavator
一种电动液压挖掘机起停控制系统
HU CHAO (author) / WANG FENG (author) / WANG YONG (author) / YANG YUFENG (author) / WANG YUNXIAN (author) / JIANG KE (author) / MENG CHENG (author) / MA XUE (author) / CHEN WENJIE (author) / LI MIN (author)
2021-06-01
Patent
Electronic Resource
Chinese
IPC:
E02F
Baggern
,
DREDGING
/
B60R
Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen
,
VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
/
H02P
CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS
,
Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern
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